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SignalFd

Struct SignalFd 

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pub struct SignalFd(/* private fields */);
Expand description

FD signalfd (cf. signalfd4(2)). Drop ferme le FD via [OwnedFd].

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impl SignalFd

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pub const fn from_owned_fd(fd: OwnedFd) -> Self

Construit depuis un OwnedFd déjà ouvert sur un signalfd.

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pub fn as_fd(&self) -> BorrowedFd<'_>

Vue empruntée du FD sous-jacent.

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pub fn into_fd(self) -> OwnedFd

Consomme et restitue le OwnedFd.

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pub fn read(&self) -> Result<SignalFdInfo, Errno>

Lit le prochain événement signal disponible sur le signalfd.

Bloque si le FD est en mode bloquant (par défaut) et qu’aucun signal n’est pendant ; retourne immédiatement avec [Errno::EAGAIN] si le FD est en mode NONBLOCK et aucun signal n’est disponible.

§Errors
  • [Errno::EAGAIN] : mode non-bloquant, aucun signal pendant.
  • [Errno::EINTR] : interrompu par un signal (remonté tel quel per convention 2 ADR-021).
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pub fn update_mask(&mut self, mask: &SignalMask) -> Result<(), Errno>

Met à jour le mask de signaux capturés par ce signalfd.

Équivalent à un nouvel appel signalfd4(self, &mask, ...) qui remplace atomiquement le mask interne du FD.

§Errors
  • [Errno::EINVAL] : mask invalide.

Trait Implementations§

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impl Debug for SignalFd

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fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter. Read more

Auto Trait Implementations§

Blanket Implementations§

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impl<T> Any for T
where T: 'static + ?Sized,

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fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more
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impl<T> Borrow<T> for T
where T: ?Sized,

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fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more
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impl<T> BorrowMut<T> for T
where T: ?Sized,

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fn borrow_mut(&mut self) -> &mut T

Mutably borrows from an owned value. Read more
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impl<T> From<T> for T

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fn from(t: T) -> T

Returns the argument unchanged.

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impl<T, U> Into<U> for T
where U: From<T>,

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fn into(self) -> U

Calls U::from(self).

That is, this conversion is whatever the implementation of From<T> for U chooses to do.

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impl<T, U> TryFrom<U> for T
where U: Into<T>,

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type Error = Infallible

The type returned in the event of a conversion error.
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fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

Performs the conversion.
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impl<T, U> TryInto<U> for T
where U: TryFrom<T>,

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type Error = <U as TryFrom<T>>::Error

The type returned in the event of a conversion error.
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fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Performs the conversion.